rather than just that sentence, here's a tldr; for the problem the article describes.
There is a difference between a loan taken to build a fishing boat and a loan to buy an existing apartment building.
A fishing boat loan is paid off by producing real objects with real value (food) some of which wealth repays the loan.
The apartment building loan is paid of by raising rents and, rather than producing anything of value, actually takes wealth out of a productive part of the economy (consumer's pockets).
By considering both kinds of loans the same we have made a financial mess of things.
There is a difference between a loan taken to build a fishing boat and a loan to buy an existing apartment building.
A fishing boat loan is paid off by producing real objects with real value (food) some of which wealth repays the loan.
The apartment building loan is paid of by raising rents and, rather than producing anything of value, actually takes wealth out of a productive part of the economy (consumer's pockets).
By considering both kinds of loans the same we have made a financial mess of things.